pretzel link
The characteristic of being obdurate; stubbornness.
(entomology) The posterior part of an insect sternum bearing the furca
plural of ladder
(topology) A link with a standard projection comprising several tangles, each a braid on two strands, with the tangles arranged in some cyclic order.
セミナーで彼女は、複数の二本糸からなるタングルを環状に配置した結び目の図を用いて、その配列がどのように異なる結び目不変量を生むかを説明した。
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